Fuel mixer



s. T. s cHAvlAK FUEL MIXER` Feb.1o.1925. 1 1 1525x121 Filed June 29. 1923 'l lll/J Patented Feb. l10, 1925i.

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application ined :une `29;;

` ments in Fuel Mixers, of which the followin is -a specication.

" I`his-invention relates Vto "fuel` mixers and enrichers for internal combustion engines,` and has :for an object lthe provision of novel `meanswhere'sbyr moisture, `heat and `residue of gases in the cranlrcase of an'internal com- `loustionmotor may be' commingled andde- Itis` af further object of this invention to livered to lcarburetedfuellini its passage to the cylinder orcylinderso an' internal coin-` bustion motore a produce a device of thelcharacter indicated motor increasesits f 25 whichwill operate proportional to the suction of the motor', theA said device remain` ing inactive when themotorfis heilig started,

and automatically thrownintoaction as the produce "fa` device of the character indicated" connected with anfe'xhaustvpipeor 'an exhaust manifold ofltliemotor and in com` chamber in which the products from `the crank case, f the exhaust pipe and the radiator are commingledprior to their delivery to the fuel pipe or intake manifold of the motor.

It is a still further object of this invention to roduce a device preferably in which a plura it of ports-are guarded to be opened successive y as the motor speeds up in its o eration; the said device also `having an air inlet which may, under certain conditions of use, constitute a drain port, as will presently appear.

With the foregoing and other objects in view, the invention consists in the details of construction, and in the `arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to the accompanying drawings forming part of this application wherein like characters denote corresponding parts in the several views, and in whichy Figure l illustrates a View in elevation of the mixing chamber 5 i.

"Figure iillustra'tes as plaiiivitrvvI of ythe 'mixer `adapted to beconnected to an `intake `manifold;

1923; 4serial 110.648,521;

unconventional motor, showing a: device ern- -bodying the invention applied thereto;

`Figure 2 illustrates.' a Vsectional view lof linefle-Lloflfig. 3; andi` v Figure 5 illustratesa sectionalzview of that' part of the device shown inFig. 2` on thelline5-5 of said Figl. I

-F'igure 4 illustrates'a sectional viewV on the In these drawings, ltldenotes a convenf tional typeoi' intake manifold, 1l* a convenv tional typeiof'exhaust nianifold,`l2 a radiator'and 13 a breather pipe incoininunicationwith the crank case.-

A device embodying; the `invention com# i prises a housing or casing 14 having prefer` ahlya threaded nipple l5 Which'is adapted to :be tapped in the wall of an `intake mani` i fold to communicate withthe interior there` of throughthe aperture l? located 4near the p l upper Aend of the said casing. `The casing Itisa further object of this invention to may have a threaded plug 1S.v in itsupper end and through whichwaloallI valve 19 may beqinserted which normally rests on the` seatZO to close `the port 21 leading to the` uppeiychainber of the casiiig.` `There is lowerchaniber 22 ot the casingto which the pipe S23-is connected, and thejsaidpipe 23. leads from" the mixing chaniher' 2i to `which air, vapor, gas and exhaust `or products o i.

combustion are Adelivered prior to being introduced intoy the intake manifold through the pipe 23 and casing 14.

The casing` 14 has two vertically disposed `chambers 25 and 26 connected together near their upper ends by a portv 27. The chambers 25 and 26 are in communication with the chamber 25 will open as the suction increases. There is a cylindrical screen 32 in the chamber 28 which prevents foreign suhstances fioni entering the chambers.

The casing has a threaded nipple 33 that may be tapped into the exhaust manifold or line, and this nipple has a portl 34 theren in-which communicates with the chamber 28 to allow acertain amount of exhaust to eliter the chamber 28 to be .mixed with vapor, air andk gas, as will presently appear. The lower part ofthe casing also has an air inlet port that communicates with the chamber, and this port 35 will also act as a drain, should there be an excess of moisture reach the interior of the mixing chambersthrough an overflow of the radiator or the like.

vThe casing 14: has a suitable coupling 36 for a pipe 37 which communicates with the interior of the radiator 12 and acoupling 37 for apipe 38 communicates with the interior of the breathertube 13.

The pipe 23 communicates with the chamber 26 through means of the valve 25 which may beopened o-r closed, according to the requirements. When the. valve is open, the device will operate A in f the manner heretofore stated, 'whereas if the valve is closed, it will interrupt the operation of the mixing device, and a demonstrator-.may compare the results and operation of the motor augmented by a device of the invention, or Where it is running Without the aid of the invention. v

Suitable plugs such as 40 may be. tapped into the several chambers to close the saine, but the inventor does not Wish to be limited with respect to the employment of plugs of the character shown.

- lVhen the device 'is installed on a motor in the manner illustrated in Fig. "1, the ball'l drawn from the radiator; gas Will be drawn from the crank case; air will be drawn from 'the atmosphere, through the port 35 and exhaust gases will be drawn through the port in the nipple and into the chamber 28 where it will be commingled and find its way through the port 30 to the chamber 26 and to the intake manifold through the casing l-l, as will be understood, and as the R. P. M. increases, the suction will overcome the gravity of the valve in the chamber 25 so that greater quantities of the mixture will reach the intake manifold through the same channels.

I claim:

In a mixer for fuel of internal combustion motors, a casing having an apertured nipple to communicate with the interior of an exhaust conductor, a chamber in the casing with which the nipple communicates, chambers in the casing in communication with the first mentioned chamber, the second mentioned chambers being in communication With each other, said casing having an air duct to the first mentioned chamber, check valves controlling passages from the first to the second mentioned chambers, a screen` in the first mentioned chamber, vapor conductingypipes communicating With the first mentioned chamber, a pipe communieating With the interior of the crankcase of the motor and With the first mentioned "chamber, whereby air. and vapors delivered `to the second mentioned chambers pass STEPHEN T. SC-HAVIAK. 

